An irregular cavity that extends from the obex to a communication with the sylvian aqueduct and is enclosed between the cerebellum dorsally and the tegmentum of rhombencephalon ventrally.
May the Fourth be with youRead more in this article about some frequently asked questions and fun facts related to our definitions.
Pluto gains a fourth moon, but what should it be named?Pluto may have been demoted to a dwarf planet in 2006, but that hasn’t stopped astronomers from studying this intriguing plutoid. NASA recently announced the discovery of a fourth moon, be it a “mini-moon,” circling the former planet. Dubbed “P4” for the time being, the hunt is on for an appropriate name. The practice of naming planets after gods and goddesses can be traced back …
- fourth heart sound,
- fourth international,
- fourth of july,
- fourth position,
- fourth republic,
- fourth wall,
- fourth world,
- fouta djallon
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.